Table 1.

Comparison with other studies.

Description	[17]	[18]	[19]	This Paper
Diabetic Retinopathy Grading Protocols	✓	X	X	✓
DR Screening Detection Techniques	X	X	X	✓
Taxonomy of Diabetic Retinopathy (DR)	X	X	X	✓
Clinical Features of Retinal image for DR Detection	✓	X	X	✓
Open Issues	✓	X	X	✓
Solution to the DR based research Problems	X	X	X	✓
DR dataset	✓	X	✓	✓
Year	2019	2020	2018	2022